It is now possible to compute the quantum-mechanical properties of atomic systems that are in effect infinite.

ECONOMIST: MONITOR

Magnetism is, ultimately, the result of a quantum-mechanical property known as spin.

ECONOMIST: How to record a memory on a wire

Not disturbing it is the quantum-mechanical equivalent of not really looking.

ECONOMIST: Physics and philosophy

That does not affect their electrical conductivity, but nanoscale particles like this are known to scatter and obstruct the passage of heat through imperfectly understood quantum-mechanical processes.

ECONOMIST: Solar power

The polarised photons were able to take the place of the particle and the antiparticle in Dr Hardy's thought experiment because they obey the same quantum-mechanical rules.

ECONOMIST: Physics and philosophy

These discoveries have given birth to a field of endeavour that is known as spintronics, because the magnetic properties of a material depend on a quantum-mechanical property of electrons called spin.

ECONOMIST: Spintronics

The Sommerfeld effect, a quantum-mechanical process that makes particles more likely to interact with one another in some circumstances and less likely in others, is mostly ignored in particle physics because it applies only in a limited range of conditions.

ECONOMIST: Two new ways to detect the elusive stuff of the universe

As electrons are point-like, their quantum mechanical behaviour is well known.

ECONOMIST: Biochemistry